/* Copyright 2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package geb.report

/**
 * A reporter can take a snapshot of the browser state, using a given name as the
 * base for whatever it produces. A common usage of a reporter is to take snapshots
 * before and after test methods.
 *
 * @see geb.report.ReporterSupport
 * @see ScreenshotReporter
 */
interface Reporter {

    /**
     * Takes a snapshot of the given browser's state, using the given name
     * as the base name for anything (e.g. file) that is produced.
     */
    void writeReport(ReportState reportState)

    /**
     * Registers an object to be notified when a report is taken.
     *
     * Adding a listener that has previously been added (based on equals()) is a noop.
     */
    void addListener(ReportingListener listener)

}